centrist vs guarded

centrist

adj
  • Of, pertaining to, or advocating centrism. 

noun
  • A person who advocates centrism. 

guarded

adj
  • Cautious; restrained. 

  • Watched over; supervised. 

  • When the practitioner formulating the opinion does not have enough information to know, or to foretell, what the outcome may be. 

How often have the words centrist and guarded occurred in a corpus of books? (source: Google Ngram Viewer )